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经营范围
发明名称
Pulpstone
摘要
申请公布号
US2450227(A)
申请公布日期
1948.09.28
申请号
US19460670664
申请日期
1946.05.18
申请人
NORTON COMPANY
发明人
BETH HUGO W. H.
分类号
B24D5/08
主分类号
B24D5/08
代理机构
代理人
主权项
地址
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